Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é o nome do gerente que foi substituído por Michael Oenning?
 ###Tabelas: CREATE TABLE eastern_conference_quarter-finals:_vs._1_new_jersey_devils (eastern_conference_quarter-finals:_vs._1_new_jersey_devils_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visitor VARCHAR, Score VARCHAR, Home VARCHAR, Record VARCHAR) CREATE TABLE managerial_changes (managerial_changes_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Outgoing manager VARCHAR, Manner of departure VARCHAR, Date of vacancy VARCHAR, Replaced by VARCHAR, Date of appointment VARCHAR) CREATE TABLE race_record (race_record_id AUTO_INCREMENT PRIMARY KEY, Age INT, Date VARCHAR, Track VARCHAR, Race VARCHAR, Distance (miles) VARCHAR, Jockey VARCHAR, Handicap VARCHAR, Field (No. horses) VARCHAR, Place VARCHAR, Time VARCHAR, Prize Money VARCHAR, + Sweepstake VARCHAR, Archer’s winnings VARCHAR) CREATE TABLE round_22 (round_22_id AUTO_INCREMENT PRIMARY KEY, Home team VARCHAR, Home team score VARCHAR, Away team VARCHAR, Away team score VARCHAR, Venue VARCHAR, Crowd INT, Date VARCHAR) CREATE TABLE referendum_on_prohibition (referendum_on_prohibition_id AUTO_INCREMENT PRIMARY KEY, Jurisdiction VARCHAR, For Prohibition INT, Percent For VARCHAR, Against Prohibition INT, Percent Against VARCHAR)  
SELECT Outgoing manager FROM managerial_changes WHERE Replaced by = michael oenning